Fill the gap with the most appropriate option from the list following the gap.
School buildings that _____ in 1950 _____ now uninhabitable?
Answer Details
School buildings that were built in 1950 are now uninhabitable.
Explanation:
The sentence refers to school buildings that were constructed in the year 1950, which means that the correct verb form to use is the past tense form "were built". Additionally, since the sentence talks about their current state of being uninhabitable, the correct auxiliary verb to use is "are". Therefore, the correct option to fill in the gap is "were built / are".